Renu Therapy Zeno 8 Outdoor Barrel Sauna

Electric stove
5-6 people
Up to 186-194°F
240V hardwired

UsabilityScore

Versus

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A six to eight-person outdoor sauna barrel in red cedar with a 8 kW stove and app control, rated up to 195°F.

$11,060

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SKU: AH-ZN8-CDR Category: Saunas Brand: Renu Therapy

Usability

6.4 out of 10

Temperature10rated up to 195°F by Renu, above the 194°F limit

Note: 195°F is the brand's rating; full heat in about an hour per Renu

Heating / Cooling Power108 kW stove for about 248 cu ft inside (interior diameter and length as a cylinder)

Stove: Harvia KIP80 with Fenix controller and MyHarvia 2 app

Capacity10six seats (pages say six to eight)

Build & Insulation4solid red cedar, tempered glass door

Walls: 1-3/8 in tongue-and-groove, no added insulation stated

Better on build & insulationRedwood Outdoors Extra-Wide Barrel SaunaThermally modified hemlock. $7,799Scores 9.0

Features & Water Care6app, light, schedule start, backrests

Verification4Harvia's 8 kW KIP heater is UL listed (KPSX.E129791); no listing for the room itself.

Searched: UL Intertek CSA CPSC Health Canada
Record: UL Product iQ, KPSX Sauna Heating Equipment (UL 875); KPSX7 for Canada, KIP-80 (listed as -80-B1, -80-B3, -80-W1, -80-W3) (model list: KIP-30-B1, -45-B1, -60-B1, -80-B1, -30-B3, -45-B3, -60-B3, -80-B3, -30-W1, -45-W1, -80-W1, -30-W3, -45-W3, -60-W3 and -80-W3; K-90..150-F1/F3; JM-17/20/30; KV-45/60/80); row ships 8 kW KIP with Harvia Fenix control, Harvia Finland Oy

Better on verificationSun Home Nova 6 traditional sauna$15,799Scores 6.0

Warranty & Support3heater one year, components five years

Room: limited lifetime on the sauna room

Price

Option: Barrel Sauna Rain Jacket $289.00 at renutherapy.com
Option: Onyx-stained hemfir $12,044.00 at renutherapy.com

Strengths

Largest barreltaller and wider inside
App start and smart scheduling
Backrests on both benches
Solid red cedar with a full glass door
Reaches the full sauna temperature limit

Drawbacks

Only a one-year warranty on the KIP unit
Rain jacket for the roof costs extra
Seat count stated two ways on its pages
Special orderships later than other sizes
Needs an electrician for a dedicated hardwired circuit

Verdict

The biggest barrel here for groups outdoors, with a short heater warranty

Specs

TypeTraditional
HeaterElectric stove
FormBarrel
PlacementOutdoor
Seats5-6 people
Max Temperature186-194°F
Min TemperatureNot applicable
Capacity (Gallons)Not applicable
ChillerNot applicable
HeatsNot applicable
Water CareNot applicable
Power Supply240V hardwired
EMF MeasuredNot measured
CertificationsComponent listing only
Warranty1 Year

Show 9 moreShow fewer

Not published by Renu Therapy: emf claimed.

Not checked: No manual or spec sheet is published for this model

At a glance

Harvia Fenix touchscreen
7 ft barrel diameter
Cradle stand base

Company

Renu Therapy LLC, founded in 2020 by William Bachand, is based in Costa Mesa, California, and owns the brand.

Where it sells

Renu Therapy sells saunas and cold plunges in the US, from a two-person indoor cabin to an eight-person outdoor barrel.
Its saunas and cold plunges are sold on its own US store at renutherapy.com, which ships them free to the contiguous US.
That store also sells another company's infrared cabins.
No Renu Therapy store or listing was found on Amazon US in November 2026.

Description

The Renu Therapy Zeno 8 is a six to eight-person outdoor barrel sauna in rustic red cedar with a 8 kW KIP electric stove, a Harvia Fenix touchscreen controller and the MyHarvia 2 app.

Renu rates it up to 195°F; the 7 ft barrel measures 79⅝ inches across by 86¼ inches long inside, about 248 cubic feet, with two cedar benches with backrests.

It is built from tongue-and-groove cedar staves with stainless steel bands on a cradle stand, with a full tempered-glass door and an LED light bar that plugs into a 110 V outlet. The stove needs a dedicated 240 V 40 A circuit wired by a licensed electrician.

It weighs about 1,280 lb assembled and ships unassembled; a rain jacket for the top is sold separately at $289.00. Onyx-stained hemfir is an option at $12,044.00. The warranty is a limited lifetime on the room, five years on components and one year on the heater.